| Acronym | Meaning |
 | FBV | Fuel Bleed Valve |
| RA | Right Ascension |
| GMT | Greenwich Mean Time |
| NTR | Nuclear Thermal Rocket(ry) |
| SBIR | Small Business Innovation Research |
| AOA | Abort Once Around (shuttle Abort Plan) |
| ATM | Amateur Telescope Maker |
| CTIO | Cerro Tololo Interamerican Observatory |
| HDE | Henry Draper Extension |
| ESRIN | European Space Research Institute |
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